package com.example.common;

public class Node {
  public int val;
  public Node left;
  public Node right;

  public Node() {
  }

  public Node(int _val) {
    val = _val;
  }

  public Node(int _val, Node _left, Node _right) {
    val = _val;
    left = _left;
    right = _right;
  }
}
